Stretchable applications using CNTs and graphene. a, Transparent and soft integrated circuits with random network SWCNT channel and PMMA dielectric layer on the PEN substrate. Reproduced with permission . Copyright 2013, Nature Publishing Group. b, Graphene FET array on a stretchable rubber substrate with ion-gel dielectric. Reproduced with permission . Copyright 2011, American Chemical Society. c, Stretchable and transparent TFTs combining SWCNTs/graphene with a geometrically wrinkled Al2O3 dielectric layer. Reproduced with permission . Copyright 2013, Nature Publishing Group. d, Wearable and stretchable strain sensors fabricated from thin films of aligned SWCNTs. Reproduced with permission . Copyright 2011, Nature Publishing Group.